[RFI] Clean Audio Amplifiers For Amateur Use? a

[Cianciolo, Paul, W1VLF]

Tony,

Look for a "linear" type audio amplifier.  Better way I guess to say it is analog. Something running Class AB or A 
Analog power supply. And analog amplifier.


73,

Paul Cianciolo, W1VLF
ARRL EMC Engineer

ARRL - The national association for Amateur RadioT
225 Main Street, Newington, CT 06111-1400 USA 
Telephone: (860) 594-0392 
FAX: (860) 594-0259
Email: w1vlf at arrl.org
World Wide Web: www.arrl.org







-----Original Message-----
From: RFI <rfi-bounces+pcianciolo=arrl.org at contesting.com> On Behalf Of Tony
Sent: Sunday, October 4, 2020 10:36 PM
To: Rfi List <rfi at contesting.com>
Subject: [RFI] RFI Clean Audio Amplifiers For Amateur Use?

All:

I'm looking for an RFI-free audio amplifier that I can use to power the external speakers on my SDR transceiver. The PC speakers I've tried were very noisy, especially the USB powered speakers from China.

Any suggestions would be appreciated.

73, Tony

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